So I was watching this episode of DS9 where Dr. Brashir is whining about the fact he was salutatorian rather than valedictorian at Starfleet Medical (because, as revealed in another episode, he deliberately missed a question on a test [because, as revealed in yet another episode, he is a genetically modified human who didn’t want to blow his cover]).
And I get to thinking about the word valedictorian.
Obvious Latin roots.
Looks like it has the roots to mean "farewell" and "to speak" in it.
And, indeed, it does.
Latin: valedicere = vale (farewell) + dicere (to speak); to bid farewell.
A valedictory is thus a "farewell speech" and a valedictorian is the person who gives it at a commencement, usually the highest scoring student.
Then I started thinking about the word vale.
Where does it come from? Looks like an imperative form of valere. But what does valere mean?
"To be strong, to be powerful, to be healthy, to prevail, to succeed."
To succeed?
So "Vale!" might be translated as "Succeed!"
That’s (more or less) what Klingons say to bid each other as a farewell: Qapla’!
I wonder if on Qo’noS they call valedictory a Qapla’SoQ? (Qapla’ = success + SoQ = speech).
Probably the most combat-proficient student gets to give it.